Guantanamo releases continue: 4 detainees sent to Europe

The release was the second since the White House put on indefinite hold the transfer of Yemenis back to their homeland in light of the Christmas Day near-bombing of a Detroit-bound passenger plane. The nationalities of the four were not announced. Last week, two Algerians were sent home.

The United States sent four Guantanamo detainees to European countries for resettlement over the weekend -- three to Slovakia and another to a still undisclosed location, U.S. officials said Monday.

The secret transfers, amid a hustle of air activity bound for relief operations in Haiti, left the prison camp census at 192 foreign captives.

It was also the second set of releases since the White House put an indefinite hold on the transfer of Yemenis back to their homeland in light of the Arabian Peninsula nation's links to a botched Christmas Day bombing of a Detroit-bound passenger plane..

The Defense Department repatriated two men to Algeria on Wednesday.

A Department of Justice announcement of the Slovak transfer said the U.S. government was withholding the identities and nationalities of the three men, at their new country's request, ``for security and privacy reasons.''